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DOP-C02 Domain 1: SDLC Automation

Amazon API Gateway fronts Lambda for a REST API. Route 53 provides DNS. A new Lambda version is ready; 10% of production traffic must hit the new functions for one week with no URL change for clients. What is the MOST operationally efficient deployment?

Multiple choice — select one answer

Answer choices

  1. a. Add a canary release on the existing production stage: 10% to the new Lambda integration and 90% to the current integration.
  2. b. Flux/Argo CD on EKS or CodePipeline to cluster
  3. c. Associate the Git repository with Amazon CodeGuru Reviewer.
  4. d. Deploy a new API stage and custom domain; use a simple Route 53 record to split 10%/90% traffic. (not recommended for production workloads)

Architectural breakdown & explanation

API Gateway canary deployments on the same stage shift traffic without client-side hostname changes.

Correct answer(s): a. Add a canary release on the existing production stage: 10% to the new Lambda integration and 90% to the current integration.

Exam domain: Domain 1: SDLC Automation (22% weight on the official guide).

Official documentation & study links

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